A great lightweight beginner trials unicycle from Impact, with the Impact ISIS Hub and Cranks. The new Athmos saddle is the same as the Naomi saddle found on the Gravity and Reagent, but without the removable cover. This unicycle comes with the same hub as the Gravity and Reagent.

Features:

• Saddle: Impact Athmos Saddle 
  
• Seatpost: Impact 'Standard' Seatpost 300mm - (25.4) 
  
• Seatpost clamp: Impact '1 Bolt' Seatpost Clamp - (28.6mm) 
  
• Frame: 20" Impact Athmos Frame - (42mm) 
  
• Wheel-size: 19" 
  
• Tire: Nimbus 'Cyko-Lite' 20" x 2.5" Tire (Un-branded) 
  
• Rim: Impact Athmos Rim - 36 Hole (47mm) 
  
• Spokes: 36, 14g Stainless Steel - Black 
  
• Hub: Impact CrMO ISIS Hub - 36 Hole 
  
• Cranks: Alumimium ISIS Cranks - Black 140mm 
  
• Pedals: Large platform plastic-bodied pedals, 9/16" thread. 
  
• Weight: 5.7kg
  

Recommended leg length sizes for unicycle:

Standard seatpost: Minimum - 73cm (28.7"), Maximum - 86cm (33.9")

Cutdown seatpost: Minimum - 63.5cm (25")

These sizes are measured from crotch to floor wearing shoes